Engine



H. L. TURNEY..

LOGGING ENGINE.

APPLICATION FILED 1uLv7. 1921.

Reissued Apr. 11,- 1922 15,335.

3 SHEETSSHEET l.

. H. L TURNEY.

, LOGGING ENGINE. APPLICATION FILED JULY 7. ISZI.

Reis su'ed Apr. 11, 192 2.

. Ala/v7 fibanfoif UNITED STATES" PATENT OFFICE.

HARRY L. runner, on roa'rLANn, onneoni resents ENGINE.

' Specification of Iteissued Letters Patent. Reiss u ed A 11 192.2:

: OriginaLNO. 1,382,378, dated December 14, 1920, Serial No. 318,668, filed August 20, 1919. Application for reissue filed J'uly 7, 1921.' Serial No, 483,058.

T all whom it may concern-r r 7 Be it known that I, I'IARRY L. TURNEY, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented new and useful Improvements in Logging Engines, of which the following is a specification.

It is desirable in logging engines to have V .the main drum so arranged that itcan 'be driven at two speeds from the same drive shaft. "This is particularly true where there are other drums'dri'ven from this drive shaft because the secondary drums should be driven ordinarily at their maximum speeds at all times. It is also desirable thatthe mechanism may be such as to permit of the change of speed ofthe main drum while the drum is in motion. The construction to ac complish this purpose must be rugged because engines of this type are subjected to very severe use. With this invention the main drum is provided'with varying speeds and thespeed of the drum may be changed while in motion. The mechanism is rugged and-of simple construction. :The invention is illustrated in the accompanying drawings as follows v Fig. 1 shows a plan view, partly insec- .tion, of the engine.

Fig; 2 an outline view in section on the .line 2-*2 in Fig. 1.

' Fig. 3 a section on the line 3 -3 in Fig. 1.

Fig. 4 a plan view of the steam friction actuating mechanism, partly insect-ion...

.The frame is made up ofthe' side beams 1 and 2, a centrally located longitudinal beam 3 and connecting beams 4and 5.

The engine rovided with the usual boilerfG. Engines 8 and operate the drive shaft 9. The drive shaft 9 'is mounted in bearings 10 mounted on the beams 1, 2 and 3; I v

A main drum 11 is journaled on a shaft 12.- The shaft 12 is journaled in bearings 13 in the beamsl and 3. The drum is-provided with a friction surface 14 operating against the friction'block's15 on thegear wheel ,16. A friction operating pin 17 extends into the end of the shaft 12 and. may be operated .by anyfriction actuating mechanism desired (not shown). The pin 17 op erates ona cross plate 18. The plate 18 operates the drum andmoves it axially on the shaft so as to move the friction surfaces-into engagement. A spring 19 the drum in the are mounted on the side beams. The engines operate on the cranks to move, the friction surfaces outof engagement'w'hen the friction device operating on the pin 17 is released. The gear wheel 16 is locked on the shaft 12 by means of a key 20. The gear wheel is provided with an internal gear 22 and a pinion 23 meshes with the gear 22. The pinion 23 is mounted on an intermediate shaft 24. shaft is journaled in a bearing 25 on the beam 3 and is supplied with a bushing 26 whlch is journaled in a bearing 27 on the beam-2. (fears 28 and 29 are journaled on theshaft 24 and these gears meshwith gears- 30 and 31 fixed on the drive shaft 9. The gear ratio of the gears 28 and 30 differs from the gear ,ratio' of the gears 29 and 31, the gear 30 being larger than the gear 32 and drives the gear 28 at a higher speed than the gear 29. For convenience, therefore, the gears 28 and 30 are designated as the high speed gears. I

A driver 32 is locked on the shaft 24 by means of a key 33. It is providedwith opposing friction surfaces 34 and 35. Friction blocks 36 on-the gear 28 operate on the friction surface 34 and blocks37 on the ear 29 operate on the friction surface 85. bushing 38 is arranged on the shaft 24 and withear 28'. This bushing is slidingly mounte on the shaft 24. :It is provided with a shoulder 39 by means of which pres sure maybe exerted .on the gear 28 and consequently on the fr'iction'blocks 36. A washer 40maybe arranged between. the shoulder 39 and the gear 28 if desired. A similar bushing 41 is arranged on the shaft 24 within the gear 29fand is provided with a shoulder 42. The bushing 41 is'slidingly mounted on the shaft 24 and the shoulder so. engages the; gear that when pressure is exerted on the bushing 'the gear may be moved axially on the shaft so as to'move the blocks 37 1mm 'engagement'with the friction surfaces35. A washer 43 is provided between the shoulder and gear if desired.

Springs are arranged; to operate on the gear 28 and move the 'friction'blocks 34;out

.of engagement when released. A spring 45 The intermediate 1 the bushing 41. It will be readily seen that in'the same direction asthe drumsf68 in a very compact manner and supplied a very simple mechanism for operating the 7 device.

. Further the use of'the -internal gear for the main-drum in connection with the intermediate shaft not only gives the desired power advantage but drives the main drurri 69 which receive their motion direct from the driveshaft. Consequently all cables may be wound over the tops of the drums.

, What I claim as new 1s-:

1 In a logging engine the combination of a driving shaft; a driven shaft; a drum driven by the driven shaft; a high speed gear connection between the drive shaft and the driven shaft; a low speed gear'connection between the driving shaft and the the driven shaft; a low speed gear connection between'the driving shaft and the driven shaft, both eonnectionsdrivingfthe dr ven shaft in the same direction; drlvers for sa1d gear connections on the driven shaft; clutches between the drivers and the gears; a'bearing for the driven shaft, both clutches being on one side of the bearing;

and a clutch operatingrod extending from said clutches and through'said bearing.

3. In a log "ng'engine, the combination of a driving saft; adriven shaft; a d-rum driven by the driven shaft; a high speed gear connection between the drive shaft and thedriven shaft; a l'ow speed gear'connection between the driving shaft and the driven shaft, both connections driving the driven shaft in the same direction; drivers for sa1d gear connections'on the driven shaft;

'clutches'between the drivers and the gears;

a bearing for the driven shaftya clutch operating rod extending from said clutches and through said bearing, said rod operating one clutch by a movement in 'one'direction and the other clutch by a movement "in the opposite direction; and thrust devices operating on the rod; said opposite side of the bearing from the clutch. 4;. In a logging engine, the combination of w a driving shaft; a driven shaft; a drum driven by the driven shaft; a high speed "gear connection between the drive shaft and driven shaft; a low speed gear connection between the drive shaft and the driven shaft;both connections driving the driven shaft in the same direction; friction clutches between the devices being on the connecting the driven shaft with said gear connections; a bearingfor'the driven shaft; and means extending through the bearing at-one end of the driven shaft for operating said clutches.

5. In a logging engine, the combination of a driving shaft; a driven shaft; a drum driven by the driven shaft; a highyspeed gear connection'between the drive shaft and driven shaft a-low speed gear connection between the drive shaft and the drivenshaft, both connections driving-the driven shaft in the same direction; a bearing for the driven shaft; a driver locked against rotation on the driven shaftand having opposing'friction surfaces; friction surfaces on the gear connections; and meansv for throwing the friction surfaces into and out of engagement I to lock and release the high andlow speed gear connections.

6. Ina logglng engine, the. combination of for the r ven shaft; a drum drivenby'the driven shaft; a high speed gear connection 7 drive shaft'and driven shaft; a low speed gear connection between the drive shaft and the driven shaft, both connections driving the driven shaft in the same'direction; a driver locked againstrotation on the driven shaft and having opposing friction surfaces; friction surfaces on the gear con adrivin shaft; a driven shaft; amounting nections; and means for throwing thefriction surfaces into andout of' engageinent to lock and release the high and low speed gear connections comprising devices actuated from without the mounting.-

7. 'In a logging engine the combination of a driving shaft a driven shaft; a drum driven by the driven shaft; a high speed gear connection between the c drive shaft and driven shaft; a low speed gear connection between the drive shaft and the driven shaft, both connections driving the driven shaft inthe same direction; a bearing for said driven shaft; a driver locked against rotation on the driven shaft and havingopposing friction surfaces; friction 1 surfaces on the gear connections; means for throwing the friction surfaces into and out of engagement to lock and release the high and low speed gear connections comprising arod extending through the bearing; and

a friction device for movlng the rod in the opposite direction.

8. In a logging engine; tl'ie'icombination -of a driving shaft; a driven shaft; a drum driven by the driven shaft; a bearing for the driven shaft; a high speed gear connection between the drive shaft'and driven shaft;

a low speed-gear connection between the drive shaft and driven shaft, both connections driving the driven shaft in the same "direction and each having a gear journaled on the driven shaft at the same side of the bearing; a clutch for connecting the gears 130 t mounted; a clutch mechanism for locking said gears alternately with the shaft com-- locking elements of said gearing with the shaft and a motor comprising a cylinder mounted on said shaft; a piston in the cylinder; ports leading to opposite-sides of said cylinder, a bushing. in the bearing; and

shaft and the intermediate shaft; a high speed gear connection between the driving shaft and the intermediate shaft; clutches for said gear connections; a secondarydrum shaft; a secondary drum=on said secondary shaft; and a gear connection between the driving shaft and said secondary drum.

2 0. In a logging engine, the combination of a drum; a shaft for driving said drum;

" a bearing forsaid shaft; two gears "slidinto engagement with a driver' with one j ingly mounted on said shaft, said gears be- 25 ing of different sizes. and each formingfan element of a driving connection for-'the drum,"one connection having a higher speed ratio than the other; clutch drivers fixed on the shaft;,.a fluid actuatedmotor mounted on the shaft; and means extending through the bearing connecting said'motor with said gears adapted. to move one of said gears,

movement of. the motor and the other gear into engagement with a" driver 7 with. another movement of the motor. 1

7 I 21. In aloggin engine, the combination.

gear connection leading to the drum; a shafton whlch one gear of each connect on 1 s prising drivers fixed on the shaft; a mounting for the shaft; and .means' having its 45 thrust sustained by the shaft operating through the mounting for actuating said mechanism.

22. In a logging engine, the combination -of a drum; a high gear connection; a 10W gear connection leading to the drum; a shaft on which one gear of each connection is mounted; a clutch mechanism for locking said gears alternately wvith the shaft; a mounting for the shaft; and means operating through the mounting for actuating said mechanism, said means operating from one end of the shaft.

23. In a logging engine, the combination of a drum; a high gear connection; a low gear connection leading to the drum; a shaft on which one gear of each connection is journaled each of said gears having a friction surface; two friction clutch elements fixed on the shaft; a mounting for the shaft;

and means having its thrust sustained by the shaft and operating through the mount-' ing for setting and releasing said clutches.

24. In a driving mechanism the combination ofa, high gearconnection; a low gear connection; a. shaft on which one. gear. of each connection is mounted; a clutch mechanism for locking said gears alternately with the shaft comprising drivers fixed on the shaft; a mounting for the shaft; and

means-halving its thrust sustained by the shaft and-operating through the mounting for actuating said mechanism. .v

25. In a driving mechanism thecombination of a high gear connection; a low gear connection; a shaft on which one gear of each connection .is journaled, each of said gears having a. friction surface; two friction clutch elements fixed-on the shaft; a

mounting'for the shaft; and means having its thrust sustained by the shaft and operating through the mounting for setting and releasingsaid clutchesi- I 26. In a driving mechanism, the,

nation of a shaft; two friction elements looked against rotation on the shaft; two

gears mounted on the shaft-and havingfrictionsurfaces adapted to engage the friction elements; and a fluid actuated. controlling device mounted on theshaft and having its movable element'operatingaxiallyof the shaft in' both directions to i set said elements and surfaces; alternately in engagement, said I controlling device "having; its; thrust 'sustained by the'sh-aft: I,

27. In a driving mechanism,;the combina-i tionof a shaft; two friction 5 elements fixed on theshaft; two gears vjou'rnaled and slidingly mounted on the shaft, said gears hav 7 ing friction surfacesadapted to engagethe friction, elements; and a fluid actuatedic'ontrolling devicefmounted on the shaft and having its f'm'ovable element operating on the shaft infboth directions to moves-aid gears alternately into and out of engagementwith the frlction elements, said icontrolling device having its thrust sustained by the shaft.

- 28. In a logging engine, the combination of a drive shaft; a main drum; a drum shaft; an internal gear drivingthe main drum; an intermediate shaft; a pinion on the intermediate shaft meshing. with the internal gear; and a variable speed gear connection between the drum and the drive shaft through the intermediate shaft, said connection comprising elements mounted on the intermediate shaft.

29. In a logging engine, the combination of a drive shaft; a main drum; a drum shaft; an internal gear driving the main drum; an intermediate shaft; a pinion on the intermediate shaft meshing with the internal gear; and a variable speed gear con- 

